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Prevention and Treatment Methods for Common Autumn Diseases in Foxes and Raccoon Dogs
The cause of gastroenteritis is mainly improper feeding and management, sudden feed changes or spoiled and deteriorated feed, excessive feed intake, etc.; in addition, long-distance and prolonged transport, extreme fatigue of the animals, and reduced body resistance can also cause this disease; furthermore, diseases such as canine distemper, pasteurellosis, and colibacillosis can cause secondary gastroenteritis. The clinical manifestations are reduced appetite at the beginning of the disease, sometimes vomiting, complete loss of appetite in the later stage, congestion of the oral mucosa, dryness and fever, listlessness, and reluctance to move. The abdomen is tucked up, the back is arched, and bowel sounds
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Detailed Guide to Controlling Leaf Spot Disease in Rhododendrons
Symptoms: It mainly infects the leaves. In the early stage of the disease, small reddish-brown spots appear on the leaves and gradually expand into lesions or irregular polygonal lesions that are dark brown. In the later stage, the tissue in the center of the lesions turns grayish-white. When the disease is severe, the lesions connect with one another, causing the leaves to turn yellow, wither, and drop early. Control methods: 1. In autumn, clear away and dispose of fallen leaves, and during the growing season promptly remove diseased leaves. 2. Planting or potted flower placement density should be appropriate to ensure ventilation and light penetration for the plants and reduce leaf surface humidity. In summer, place potted flowers in an outdoor shade shed to reduce sunscald and mechanical
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What are the control methods for azalea leaf spot disease?
Leaf spot is a major disease of azaleas. When it first appears, small brown spots form on the leaves; the spots merge with one another and gradually develop into large blotches, and the lesions become irregular in shape, darker on the upper surface and lighter on the underside. In the later stage, the center of the lesion turns grayish brown, and many black or grayish-brown spots form on the lesion. In severe cases, the branches are completely bare and the plant becomes weak. Control plan: at the early stage of the disease, spray 1:1:120 Bordeaux mixture, or 0.4 degree Baume lime sulfur mixture, or 65% zineb wettable powder at 500 times dilution, or 25% car
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A Detailed Guide to Rhododendron Cultivation Techniques and Pest and Disease Control Methods
Rhododendron, also known as yingshanhong, yangjiaohua, yangzhizhu, hongzhizhu, and hongzhizhu, is a semi-evergreen, evergreen deciduous shrub or evergreen small tree of the genus Rhododendron in the family Ericaceae. Flower types include single, semi-double, and double, with the corolla mostly red, in various shades such as bright red, pink, peach red, vermilion, purple red, and yellow; there are also pure white, golden yellow, pale yellow, and violet colors, or mixed with spots and stripes. There are about 800 species in the same genus, most of which are native to China. It is a traditional famous flower of our country and one of China's "Top Ten Famous Flowers." It is a city
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Identification and Control Methods for Common Rhododendron Diseases
The main diseases of rhododendrons include root rot, brown spot, black spot, leaf blight, and iron-deficiency chlorosis. After a rhododendron suffers from root rot, its growth weakens, the leaves wilt and dry up, and water-soaked brown patches appear on the root surface; in severe cases, soft rot develops, and the roots gradually rot and peel, with the xylem turning black. This disease is most likely to occur under conditions of high temperature and high humidity. The control method is to strictly disinfect the potting soil before repotting, and to keep the soil loose and moist with good permeability, avoiding waterlogging. If an affected plant is found, deal with it promptly.
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Symptoms and Control Methods of Azalea Gall Disease
Symptoms: It can harm the young branches, shoot tips and leaves of azaleas. After the leaves are affected, the edges or the entire leaf become swollen and thickened, forming tumor-like or hemispherical fleshy galls. After young branches are affected, they also swell and thicken into fleshy galls, affecting new shoot growth. After flowers are affected, a white powdery mold layer, namely the fungal hymenium, grows on the petal surface or in depressions. In the later stage, the galls turn brown, wither and fall off. Pathogen and current disease situation: Pathogen: Exobasidium hemisphaericum Shirai, Basidiomycota, Hymenomycetes, Exobasidiales.
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A comprehensive guide to rhododendron leaf spot disease
Round lesions, or irregular polygonal lesions, dark brown, 1mm-5mm in diameter. In the later stage, the central tissue of the lesions turns grayish white. When the disease is severe, the lesions merge with each other, causing the leaves to turn yellow and drop early. Under moist environmental conditions, many small brown mold spots grow on the underside of the leaf spots, namely the conidia and conidiophores of the pathogenic fungus. Pathogen and current disease situation: it is Cercospora rhododendri Fer., Deuteromycotina, Hyphomycetes
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How to prevent and control leaf spot disease in Japanese euonymus?
Preventing and controlling leaf spot disease in Japanese euonymus: 1. In winter, thoroughly remove diseased fallen leaves, burn them in a centralized manner or bury them deeply, to reduce the source of the disease. 2. Select robust seedlings to create hedges or make euonymus balls. 3. During the disease season, spray 1% Bordeaux mixture, or 50% benomyl wettable powder at 1000 to 1500 times dilution, or 50% carbendazim at 500 times dilution, or 75% chlorothalonil at 500 times dilution, spraying once every 10 to 15 days, for 2 to 3 consecutive times. Alternatively, spraying 200 times diluted non-toxic high-lipid film 4 times is also effective.
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Control Methods and Techniques for Leaf Spot Disease in Japanese Euonymus
Japanese euonymus (Euonymus japonicus) is a commonly used evergreen ornamental small shrub in landscaping, with many advantages, but the occurrence of leaf spot disease causes premature leaf drop, resulting in bare branches and even death, seriously affecting the normal growth and ornamental effect of Japanese euonymus. 1. Symptoms: In the early stage of the disease, small yellow spots appear on the leaves, gradually turning yellow-brown, expanding into circular or irregular spots, with a lesion diameter of 2 mm to 10 mm. In the later stage, the lesions become gray-brown or gray-white with darker edges, and many small black dots form on the lesions. In severe cases, the lesions merge into one piece,
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Grasp and carry out the control of diseases and pests in honeysuckle now
Honeysuckle, formerly known as Japanese honeysuckle, also called silver flower, honeysuckle flower, and twin flower, is a twining vine of the Caprifoliaceae family. The county has developed a honeysuckle base of 60,000 mu. Because the base farmers manage extensively and the supporting techniques have not kept up, especially disease and pest control management, the yield of honeysuckle is low and the quality is poor. According to a survey by the county plant protection station, honeysuckle diseases and pests occur fairly commonly in our county, among which honeysuckle powdery mildew, brown spot, aphids and red spiders are relatively serious in occurrence and harm. At present, it is the best time to control honeysuckle powdery mildew, brown spot, aphids
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